David Williams, MD
Vascular Surgery · Greenville, SCNPI 1962609347
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 93.2% of the total across 326 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. W. L. Gore & Associates, Inc. accounts for 60.1% of it on its own, with 35 other manufacturers making up the rest. Reporting peaked in 2021 at $3,935 and has fallen 61.2% since, to $1,526 in 2025.
Across 326 payments — averaging $53.87 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- W. L. Gore & Associates, Inc.$11K
- Bausch & Lomb, A Division Of Bausch Health US, LLC$2K
- Cook Medical LLC$1K
- Endologix LLC$519
- Johnson & Johnson$519
- Artivion, Inc.$453
- plus $2K from 30 others
What the payments were for
- Travel & lodging$1,1937%
- Food & beverage$16,36993%
Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.
General payments by program year
Who reported the general payments
Companies are grouped under their corporate parent — a single manufacturer often files under several CMS reporting entities. Research and ownership payments are counted separately and are not in this table.
| Company | Payments | Total |
|---|---|---|
| W. L. Gore & Associates, Inc. | 128 | $10,549 |
| Bausch & Lomb, A Division Of Bausch Health US, LLC | 20 | $1,942 |
| Cook Medical LLC | 19 | $1,126 |
| Endologix LLC | 5 | $519 |
| Johnson & Johnson | 31 | $519 |
| Artivion, Inc. | 26 | $453 |
| Organogenesis Inc. | 14 | $380 |
| Shockwave Medical, Inc | 5 | $274 |
| Cvrx, Inc. | 4 | $222 |
| Medtronic(2 entities) | 5 | $188 |
| Cordis US CORP. | 8 | $160 |
| Smith+Nephew | 9 | $158 |
| Cardiva Medical, Inc. | 4 | $115 |
| Silk Road Medical, Inc. | 6 | $113 |
| Atricure, Inc. | 3 | $102 |
| Lemaitre Vascular, Inc. | 6 | $97 |
| Triad Life Sciences Inc. | 4 | $95 |
| Teleflex LLC | 3 | $65 |
| Convatec Inc. | 3 | $60 |
| Getinge USA Sales, LLC | 2 | $54 |
| Globus Medical(2 entities) | 2 | $53 |
| Cardiovascular Systems Inc. | 2 | $46 |
| Cashflow Solutions, LLC | 2 | $34 |
| Boston Scientific | 2 | $25 |
| Bolton Medical Inc | 1 | $24 |
| Misonix Inc | 2 | $23 |
| Solventum Corporation | 1 | $22 |
| KCI USA, Inc. | 1 | $20 |
| Genentech USA, Inc. | 1 | $20 |
| Terumo Medical Corporation | 1 | $17 |
| Amgen | 1 | $17 |
| BD | 1 | $17 |
| Hydrofera LLC | 1 | $15 |
| Integra Lifesciences Corporation | 1 | $15 |
| EKOS Corporation | 1 | $13 |
| Surmodics, Inc. | 1 | $12 |
What the payments were tied to
Products named in the reported payments. Only payments of $100 or more are attributed here — the typical reported payment nationally is a meal worth about $16, and listing those product-by-product would be noise.
- Conformable TAG Thoracic Endoprosthesis$1,645
- GORE TAG Conformable Thoracic Endoprosthesis$1,459
- OPHTHALMIC INSTRUMENTS$1,266
- Crystalens Accommodating IOL (AT-52AO)$1,266
- enVista MX60 IOL$1,266
- EXCLUDER Conformable AAA Endoprosthesis with Active Control$1,141
- GORE EXCLUDER Iliac Branch Endoprosthesis$826
- GORE VIABAHN VBX Balloon Expandable Endo$639
- EXCLUDER Iliac Branch Endoprosthesis$553
- GORE PROPATEN Vascular Graft$363
- Ovation iX Iliac Stent Graft$266
- AFX2 Bifurcated Endograft System$266
- GORE TAG Thoracic Endoprosthesis$159
- GORE ACUSEAL Vascular Graft$155
- Barostim Neo System$152
- VIABAHN Endoprosthesis with Heparin Bioactive Surface$150
- PROPATEN Vascular Graft$150
- Cook Medical Stents$140
- GORE-TEX Stretch Vascular Graft$126
- Cook Medical AFEN$123
How this compares
$17,562 in reported general payments places this provider in the 75th percentile of 99 vascular surgery providers in South Carolina.
Medicare billing
What this is not: this is the amount Original Medicare Part B allowed for services this provider billed in 2024. It is not their income. It excludes Medicare Advantage — now more than half of all Medicare enrollment — along with Medicaid and all commercial insurance, and it is gross practice revenue before staff, rent, supplies and malpractice premiums. CMS also suppresses any figure covering ten or fewer patients, so low-volume providers appear smaller than they are.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen | 35 | $208 |
Paid to pharmacies, not to this prescriber.
Other vascular surgery in Greenville
- Sagar GandhiGreenville$236K
- Joseph BlasGreenville$101K
- John YorkGreenville$42K
- Robert PattonGreenville$25K
- Mark AndroesGreenville$9K
- Christopher CarstenGreenville$8K
- David CullGreenville$8K
- John RossOrangeburg$847K
- David DeatonColumbia$609K
- Mathew WoosterWest Columbia$443K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Billing: Medicare Physician & Other Practitioners, data year 2024. Original Medicare Part B only.
- Identity: NPPES NPI Registry, July 2026.